Learn about the veterinary topic of Hives (Urticaria) in Horses. Find specific details on this topic and related topics from the Merck Vet Manual.

Nov 6, 2025 · In addition to the appearance of wheals, hives may also cause itchiness, particularly in the earliest stages of the reaction. Make sure the horse’s nostrils are clear. If the hives are the result of a …

Jul 15, 2025 · Hives, also known as urticaria, are fluid-filled, raised swellings or “wheals” on the skin. Learn more about hives, and what supplements may help your horse.

Key Takeaways Horse hives are round, raised bumps on a horse’s skin. Horse hives can appear in reaction to allergies in the environment. Treatment for hives in horses typically requires medications …

Hives are usually manageable, but they call for careful observation, vet-guided treatment, and attention to triggers. In 2025, a holistic, veterinary-partnership approach ensures your horse stays comfortable …

Apr 5, 2024 · A. Hives (also called urticaria) are roughly circular, steep-walled, plaquelike wheals that are relatively common in the horse. The lesions usually occur on the head and neck but may occur on...

May 28, 2024 · Understand hives in horses, including causes, symptoms, and treatments. Learn how to manage and prevent urticaria to keep your horse healthy and comfortable

Hives are not uncommon in horses and generally not a cause for alarm. Here’s how you can figure out what your horse’s skin is trying to tell you. Why Do Horses Get Hives? Hives occur when your …

Dec 24, 2025 · Hives in horses, also called urticaria, are sudden, raised, soft swellings in the skin caused by histamine release from mast cells in response to a trigger. They can appear anywhere on …

Hives, officially called urticaria, are raised bumps on your horse. They typically appear on the head and neck, but some spread over the entire body. These alarming bumps are a sign you need to …